/// <summary>
/// Makes the filter aware of the <see cref="IMessageTrigger"/>.
/// </summary>
/// <param name="messageHandler">The message handler.</param>
/// <param name="trigger">The trigger.</param>
public void MakeAwareOf(IRoutedMessageHandler messageHandler, IMessageTrigger trigger)
{
var helper = messageHandler.Metadata.FirstOrDefaultOfType<AutoCheckAvailabilityHelper>();
if(helper == null) return;
helper.MakeAwareOf(trigger);
}
/// <summary>
/// Create engine
/// </summary>
/// <param name="messageTrigger"></param>
/// <param name="encoder"></param>
/// <param name="messageSink"></param>
/// <param name="engineConfiguration"></param>
/// <param name="logger"></param>
/// <param name="identity"></param>
public DataFlowProcessingEngine(IMessageTrigger messageTrigger, IMessageEncoder encoder,
IMessageSink messageSink, IEngineConfiguration engineConfiguration, ILogger logger,
IIdentity identity)
{
_config = engineConfiguration;
_messageTrigger = messageTrigger;
_messageSink = messageSink;
_messageEncoder = encoder;
_logger = logger;
_identity = identity;
if (_config.BatchSize.HasValue && _config.BatchSize.Value > 1)
{
_dataSetMessageBufferSize = _config.BatchSize.Value;
}
if (_config.MaxMessageSize.HasValue && _config.MaxMessageSize.Value > 0)
{
_maxEncodedMessageSize = _config.MaxMessageSize.Value;
}
_diagnosticInterval = _config.DiagnosticsInterval.GetValueOrDefault(TimeSpan.Zero);
_batchTriggerInterval = _config.BatchTriggerInterval.GetValueOrDefault(TimeSpan.Zero);
_diagnosticsOutputTimer = new Timer(DiagnosticsOutputTimer_Elapsed);
_batchTriggerIntervalTimer = new Timer(BatchTriggerIntervalTimer_Elapsed);
_maxEgressMessageQueue = _config.MaxEgressMessageQueue.GetValueOrDefault(4096); // = 2 GB / 2 / (256 * 1024)
_logger.Information($"Max. egress message queue: {_maxEgressMessageQueue} messages ({_maxEgressMessageQueue * 256 / 1024} MB)");
}
protected virtual IMessageTrigger ParseMessage(string messageText, DependencyObject target)
{
var triggerPlusMessage = messageText.Split('=');
string messageDetail = triggerPlusMessage.Last()
.Replace("[", string.Empty)
.Replace("]", string.Empty)
.Trim();
IRoutedMessage message = null;
foreach (var keyValuePair in _messageParsers)
{
if (messageDetail.StartsWith(keyValuePair.Key, StringComparison.CurrentCultureIgnoreCase))
{
message = keyValuePair.Value
.Parse(target, messageDetail.Remove(0, keyValuePair.Key.Length).Trim());
break;
}
}
if (message == null)
{
message = _messageParsers[_defaultMessageParserKey]
.Parse(target, messageDetail);
}
IMessageTrigger trigger = null;
if (triggerPlusMessage.Length == 1)
{
var defaults = _controller.FindDefaultsOrFail(target);
trigger = defaults.GetDefaultTrigger();
}
else
{
var triggerDetail = triggerPlusMessage[0]
.Replace("[", string.Empty)
.Replace("]", string.Empty)
.Trim();
foreach (var keyValuePair in _triggerParsers)
{
if (triggerDetail.StartsWith(keyValuePair.Key, StringComparison.CurrentCultureIgnoreCase))
{
trigger = keyValuePair.Value
.Parse(target, triggerDetail.Remove(0, keyValuePair.Key.Length).Trim());
break;
}
}
}
if (trigger == null)
{
throw new CaliburnException("Could not determine trigger type.");
}
trigger.Message = message;
return(trigger);
}
internal void MakeAwareOf(IMessageTrigger trigger)
{
if (!triggersToNotify.Contains(trigger))
{
triggersToNotify.Add(trigger);
}
}
/// <summary>
/// Create engine
/// </summary>
/// <param name="messageTrigger"></param>
/// <param name="encoder"></param>
/// <param name="messageSink"></param>
/// <param name="engineConfiguration"></param>
/// <param name="logger"></param>
/// <param name="identity"></param>
public DataFlowProcessingEngine(IMessageTrigger messageTrigger, IMessageEncoder encoder,
IMessageSink messageSink, IEngineConfiguration engineConfiguration, ILogger logger,
IIdentity identity)
{
_config = engineConfiguration;
_messageTrigger = messageTrigger;
_messageSink = messageSink;
_messageEncoder = encoder;
_logger = logger;
_identity = identity;
if (_config.BatchSize.HasValue && _config.BatchSize.Value > 1)
{
_dataSetMessageBufferSize = _config.BatchSize.Value;
}
if (_config.MaxMessageSize.HasValue && _config.MaxMessageSize.Value > 0)
{
_maxEncodedMessageSize = _config.MaxMessageSize.Value;
}
_diagnosticInterval = _config.DiagnosticsInterval.GetValueOrDefault(TimeSpan.Zero);
_batchTriggerInterval = _config.BatchTriggerInterval.GetValueOrDefault(TimeSpan.Zero);
_diagnosticsOutputTimer = new Timer(DiagnosticsOutputTimer_Elapsed);
_batchTriggerIntervalTimer = new Timer(BatchTriggerIntervalTimer_Elapsed);
}
public void RegisterTrigger(IMessageTrigger trigger)
{
if (!_triggersToNotify.Contains(trigger))
{
_triggersToNotify.Add(trigger);
}
}
/// <summary>
/// Create engine
/// </summary>
/// <param name="messageTrigger"></param>
/// <param name="encoder"></param>
/// <param name="messageSink"></param>
/// <param name="engineConfiguration"></param>
/// <param name="logger"></param>
public DataFlowProcessingEngine(IMessageTrigger messageTrigger, IMessageEncoder encoder,
IMessageSink messageSink, IEngineConfiguration engineConfiguration, ILogger logger)
{
_messageTrigger = messageTrigger;
_messageSink = messageSink;
_messageEncoder = encoder;
_logger = logger;
_messageTrigger.OnMessage += MessageTriggerMessageReceived;
if (engineConfiguration.DiagnosticsInterval.HasValue &&
engineConfiguration.DiagnosticsInterval > TimeSpan.Zero)
{
_diagnosticsOutputTimer = new Timer(DiagnosticsOutputTimer_Elapsed, null, 0,
(int)engineConfiguration.DiagnosticsInterval.Value.TotalMilliseconds);
}
if (engineConfiguration.BatchSize.HasValue &&
engineConfiguration.BatchSize.Value > 1)
{
_dataSetMessageBufferSize = engineConfiguration.BatchSize.Value;
}
if (engineConfiguration.MaxMessageSize.HasValue &&
engineConfiguration.MaxMessageSize.Value > 0)
{
_maxEncodedMessageSize = engineConfiguration.MaxMessageSize.Value;
}
}
/// <summary>
/// Makes the filter aware of the <see cref="IMessageTrigger"/>.
/// </summary>
/// <param name="messageHandler">The message handler.</param>
/// <param name="trigger">The trigger.</param>
public void MakeAwareOf(IRoutedMessageHandler messageHandler, IMessageTrigger trigger)
{
var helper = messageHandler.GetMetadata<DependencyObserver>();
if (helper == null) return;
if (trigger.Message.RelatesTo(_target))
helper.MakeAwareOf(trigger, _dependencies);
}
/// <summary>
/// Makes the filter aware of the <see cref="IMessageTrigger"/>.
/// </summary>
/// <param name="messageHandler">The message handler.</param>
/// <param name="trigger">The trigger.</param>
public void MakeAwareOf(IRoutedMessageHandler messageHandler, IMessageTrigger trigger)
{
var helper = messageHandler.Metadata.FirstOrDefaultOfType<DependencyObserver>();
if (helper == null) return;
if (trigger.Message.RelatesTo(target))
helper.MakeAwareOf(trigger, dependencies);
}
/// <summary>
/// Makes the metadata aware of the relationship between an <see cref="IMessageTrigger"/> and its dependencies.
/// </summary>
/// <param name="trigger">The trigger.</param>
/// <param name="dependencies">The dependencies.</param>
public void MakeAwareOf(IMessageTrigger trigger, IEnumerable <string> dependencies)
{
foreach (var dependency in dependencies)
{
var info = GetMonitoringInfos(dependency);
info.RegisterTrigger(trigger);
}
}
/// <summary>
/// Makes the metadata aware of the relationship between an <see cref="IMessageTrigger"/> and its dependencies.
/// </summary>
/// <param name="trigger">The trigger.</param>
/// <param name="dependencies">The dependencies.</param>
public void MakeAwareOf(IMessageTrigger trigger, IEnumerable<string> dependencies)
{
foreach (var dependency in dependencies)
{
var info = GetMonitoringInfos(dependency);
info.RegisterTrigger(trigger);
}
}
protected override void given_the_context_of()
{
container = Mock<IServiceLocator>();
methodHost = new TheMethodHost();
handler = Mock<IRoutedMessageHandler>();
handler.Stub(x => x.Unwrap()).Return(methodHost);
trigger = Stub<IMessageTrigger>();
trigger.Message = Stub<IRoutedMessage>();
}
protected override void given_the_context_of()
{
container = Mock <IServiceLocator>();
methodHost = new TheMethodHost();
handler = Mock <IRoutedMessageHandler>();
handler.Stub(x => x.Unwrap()).Return(methodHost);
trigger = Stub <IMessageTrigger>();
trigger.Message = Stub <IRoutedMessage>();
}
/// <summary>
/// Updates the availability of the trigger.
/// </summary>
/// <param name="trigger">The trigger.</param>
public void UpdateAvailability(IMessageTrigger trigger)
{
if (!_elementIsLoaded)
{
return;
}
FindHandlerOrFail(trigger.Message, true).UpdateAvailability(trigger);
}
/// <summary>
/// Makes the metadata aware of the relationship between an <see cref="IMessageTrigger"/> and its dependencies.
/// </summary>
/// <param name="trigger">The trigger.</param>
/// <param name="dependencies">The dependencies.</param>
public void MakeAwareOf(IMessageTrigger trigger, IEnumerable<string> dependencies)
{
foreach (var dependency in dependencies)
{
var observer = GetSinglePathObserver(dependency);
if (observer!= null)
observer.RegisterTrigger(trigger);
}
}
protected override void given_the_context_of()
{
_expectationsWasSet = false;
var methodFactory = new DefaultMethodFactory();
_handler = StrictMock<IRoutedMessageHandler>();
_notifier = new TheNotifierClass();
_observer = new DependencyObserver(_handler, methodFactory, _notifier);
_trigger = Mock<IMessageTrigger>();
}
/// <summary>
/// Adds the trigger.
/// </summary>
/// <param name="trigger">The trigger.</param>
public void AddTrigger(IMessageTrigger trigger)
{
if (_triggers == null)
{
_triggers = new List <IMessageTrigger>();
}
trigger.Attach(this);
_triggers.Add(trigger);
}
/// <summary>
/// Makes the metadata aware of the relationship between an <see cref="IMessageTrigger"/> and its dependencies.
/// </summary>
/// <param name="trigger">The trigger.</param>
/// <param name="dependencies">The dependencies.</param>
public void MakeAwareOf(IMessageTrigger trigger, IEnumerable <string> dependencies)
{
foreach (var dependency in dependencies)
{
var observer = GetSinglePathObserver(dependency);
if (observer != null)
{
observer.RegisterTrigger(trigger);
}
}
}
/// <summary>
/// Makes the filter aware of the <see cref="IMessageTrigger"/>.
/// </summary>
/// <param name="messageHandler">The message handler.</param>
/// <param name="trigger">The trigger.</param>
public void MakeAwareOf(IRoutedMessageHandler messageHandler, IMessageTrigger trigger)
{
var helper = messageHandler.GetMetadata <AutoCheckAvailabilityHelper>();
if (helper == null)
{
return;
}
helper.MakeAwareOf(trigger);
}
protected override void given_the_context_of()
{
expectationsWasSet = false;
var methodFactory = new DefaultMethodFactory();
handler = StrictMock <IRoutedMessageHandler>();
notifier = new TheNotifierClass();
observer = new DependencyObserver(handler, methodFactory, notifier);
trigger = Mock <IMessageTrigger>();
}
/// <summary>
/// Makes the filter aware of the <see cref="IMessageTrigger"/>.
/// </summary>
/// <param name="messageHandler">The message handler.</param>
/// <param name="trigger">The trigger.</param>
public void MakeAwareOf(IRoutedMessageHandler messageHandler, IMessageTrigger trigger)
{
var helper = messageHandler.GetMetadata <ItemDependencyObserver>();
if (helper == null)
{
return;
}
if (trigger.Message.RelatesTo(_target))
{
helper.MakeAwareOf(trigger, _dependencies);
}
}
/// <summary>
/// Attaches the trigger and prepares it to send actions.
/// </summary>
/// <param name="uiElement">The UI element.</param>
/// <param name="trigger">The trigger.</param>
public void AttachTrigger(DependencyObject uiElement, IMessageTrigger trigger)
{
if(trigger.Message is IRoutedMessageHandler)
{
var node = new InteractionNode(uiElement, this);
node.RegisterHandler(trigger.Message as IRoutedMessageHandler);
node.AddTrigger(trigger);
}
else
{
var node = FindOrAddNode(uiElement);
node.AddTrigger(trigger);
}
}
/// <summary>
/// Makes the filter aware of the <see cref="IMessageTrigger"/>.
/// </summary>
/// <param name="messageHandler">The message handler.</param>
/// <param name="trigger">The trigger.</param>
public void MakeAwareOf(IRoutedMessageHandler messageHandler, IMessageTrigger trigger)
{
var helper = messageHandler.Metadata.FirstOrDefaultOfType <DependencyObserver>();
if (helper == null)
{
return;
}
if (trigger.Message.RelatesTo(target))
{
helper.MakeAwareOf(trigger, dependencies);
}
}
/// <summary>
/// Attaches the trigger and prepares it to send actions.
/// </summary>
/// <param name="uiElement">The UI element.</param>
/// <param name="trigger">The trigger.</param>
public void AttachTrigger(DependencyObject uiElement, IMessageTrigger trigger)
{
if (trigger.Message is IRoutedMessageHandler)
{
var node = new InteractionNode(uiElement, this);
node.RegisterHandler(trigger.Message as IRoutedMessageHandler);
node.AddTrigger(trigger);
}
else
{
var node = FindOrAddNode(uiElement);
node.AddTrigger(trigger);
}
}
/// <summary>
/// Adds the trigger.
/// </summary>
/// <param name="trigger">The trigger.</param>
public void AddTrigger(IMessageTrigger trigger)
{
if (triggers == null)
{
triggers = new List <IMessageTrigger>();
}
trigger.Attach(this);
triggers.Add(trigger);
if (elementIsLoaded)
{
PrepareTrigger(trigger);
}
Log.Info("Trigger {0} attached.", trigger);
}
/// <summary>
/// Makes the handler aware of a specific trigger.
/// </summary>
/// <param name="trigger">The trigger.</param>
public void MakeAwareOf(IMessageTrigger trigger)
{
if (trigger.Message != this)
{
return;
}
CreateActionMessage();
bool isAvailable = action.ShouldTriggerBeAvailable(actionMessage, Source);
trigger.UpdateAvailabilty(isAvailable);
TryUpdateParentAvailability(isAvailable);
action.Filters.HandlerAware.Apply(x => x.MakeAwareOf(this, trigger));
Log.Info("Made handler aware of filters for {0}.", Command);
}
/// <summary>
/// Updates the availability of the trigger.
/// </summary>
/// <param name="trigger">The trigger.</param>
public void UpdateAvailability(IMessageTrigger trigger)
{
var actionMessage = trigger.Message as ActionMessage;
if (actionMessage == null)
{
var ex = new CaliburnException("The handler cannot update availability for this trigger.");
Log.Error(ex);
throw ex;
}
Log.Info("Requesting update avaiability for {0}.", actionMessage);
var action = FindActionHandler(actionMessage);
bool isAvailable = action.ShouldTriggerBeAvailable(actionMessage, node);
trigger.UpdateAvailabilty(isAvailable);
}
/// <summary>
/// Makes the handler aware of a specific trigger.
/// </summary>
/// <param name="trigger">The trigger.</param>
public void MakeAwareOf(IMessageTrigger trigger)
{
if (trigger.Message != this)
{
return;
}
CreateActionMessage();
if (_action.HasTriggerEffects())
{
bool isAvailable = _action.ShouldTriggerBeAvailable(_actionMessage, Source);
trigger.UpdateAvailabilty(isAvailable);
TryUpdateParentAvailability(isAvailable);
}
_action.Filters.HandlerAware.Apply(x => x.MakeAwareOf(this, trigger));
}
/// <summary>
/// Updates the availability of the trigger.
/// </summary>
/// <param name="trigger">The trigger.</param>
public void UpdateAvailability(IMessageTrigger trigger)
{
if (trigger.Message != this)
{
var ex = new CaliburnException("The handler cannot update availability for this trigger.");
Log.Error(ex);
throw ex;
}
if (Command != null)
{
CreateActionMessage();
bool isAvailable = action.ShouldTriggerBeAvailable(actionMessage, Source);
trigger.UpdateAvailabilty(isAvailable);
TryUpdateParentAvailability(isAvailable);
}
}
/// <summary>
/// Makes the handler aware of a specific trigger.
/// </summary>
/// <param name="trigger">The trigger.</param>
public void MakeAwareOf(IMessageTrigger trigger)
{
var actionMessage = trigger.Message as ActionMessage;
if (actionMessage == null)
{
return;
}
var action = _host.GetAction(actionMessage);
if (action.HasTriggerEffects())
{
bool isAvailable = action.ShouldTriggerBeAvailable(actionMessage, _node);
trigger.UpdateAvailabilty(isAvailable);
}
action.Filters.HandlerAware.Apply(x => x.MakeAwareOf(this, trigger));
}
/// <summary>
/// Updates the availability of the trigger.
/// </summary>
/// <param name="trigger">The trigger.</param>
public void UpdateAvailability(IMessageTrigger trigger)
{
if (trigger.Message != this)
{
throw new CaliburnException("The handler cannot update availability for this trigger.");
}
if (Command != null)
{
CreateActionMessage();
if (_action.HasTriggerEffects())
{
bool isAvailable = _action.ShouldTriggerBeAvailable(_actionMessage, Source);
trigger.UpdateAvailabilty(isAvailable);
TryUpdateParentAvailability(isAvailable);
}
}
}
/// <summary>
/// Makes the filter aware of the <see cref="IMessageTrigger"/>.
/// </summary>
/// <param name="messageHandler">The message handler.</param>
/// <param name="trigger">The trigger.</param>
public void MakeAwareOf(IRoutedMessageHandler messageHandler, IMessageTrigger trigger)
{
if (!AffectsTriggers || !IsGetter)
{
return;
}
var helper = messageHandler.GetMetadata <DependencyObserver>();
if (helper == null)
{
return;
}
if (trigger.Message.RelatesTo(Target))
{
helper.MakeAwareOf(trigger, new[] { MethodName });
}
}
/// <summary>
/// Updates the availability of the trigger.
/// </summary>
/// <param name="trigger">The trigger.</param>
public void UpdateAvailability(IMessageTrigger trigger)
{
var actionMessage = trigger.Message as ActionMessage;
if (actionMessage == null)
{
throw new CaliburnException("The handler cannot update availability for this trigger.");
}
var action = _host.GetAction(actionMessage);
if (!action.HasTriggerEffects())
{
return;
}
bool isAvailable = action.ShouldTriggerBeAvailable(actionMessage, _node);
trigger.UpdateAvailabilty(isAvailable);
}
void PrepareTrigger(IMessageTrigger messageTrigger)
{
var handler = FindHandlerOrFail(messageTrigger.Message, false);
if (handler != null)
{
handler.MakeAwareOf(messageTrigger);
}
if (!elementIsLoaded)
{
return;
}
var eventTrigger = messageTrigger as EventMessageTrigger;
if (eventTrigger != null && eventTrigger.EventName == "Loaded")
{
ProcessMessage(eventTrigger.Message, new RoutedEventArgs());
}
}
/// <summary>
/// Makes the filter aware of the <see cref="IMessageTrigger"/>.
/// </summary>
/// <param name="messageHandler">The message handler.</param>
/// <param name="trigger">The trigger.</param>
public void MakeAwareOf(IRoutedMessageHandler messageHandler, IMessageTrigger trigger)
{
if (!AffectsTriggers || !trigger.Message.RelatesTo(Member))
{
return;
}
var depObserver = messageHandler.Metadata.FirstOrDefaultOfType <DependencyObserver>();
if (IsGetter && depObserver != null)
{
depObserver.MakeAwareOf(trigger, new[] { MethodName });
}
var evtMonitor = messageHandler.Metadata.FirstOrDefaultOfType <EventMonitor>();
if (evtMonitor != null)
{
evtMonitor.MakeAwareOf(trigger);
}
}
/// <summary>
/// Create engine
/// </summary>
/// <param name="messageTrigger"></param>
/// <param name="encoder"></param>
/// <param name="messageSink"></param>
/// <param name="engineConfiguration"></param>
/// <param name="logger"></param>
/// <param name="identity"></param>
public DataFlowProcessingEngine(IMessageTrigger messageTrigger, IMessageEncoder encoder,
IMessageSink messageSink, IEngineConfiguration engineConfiguration, ILogger logger,
IIdentity identity)
{
_config = engineConfiguration;
_messageTrigger = messageTrigger;
_messageSink = messageSink;
_messageEncoder = encoder;
_logger = logger;
_identity = identity;
_messageTrigger.OnMessage += MessageTriggerMessageReceived;
if (_config.BatchSize.HasValue && _config.BatchSize.Value > 1)
{
_dataSetMessageBufferSize = _config.BatchSize.Value;
}
if (_config.MaxMessageSize.HasValue && _config.MaxMessageSize.Value > 0)
{
_maxEncodedMessageSize = _config.MaxMessageSize.Value;
}
}
/// <summary>
/// Makes the handler aware of a specific trigger.
/// </summary>
/// <param name="trigger">The trigger.</param>
public void MakeAwareOf(IMessageTrigger trigger)
{
var actionMessage = trigger.Message as ActionMessage;
if (actionMessage == null)
{
return;
}
var handler = FindActionHandler(actionMessage);
bool isAvailable = handler.ShouldTriggerBeAvailable(actionMessage, node);
trigger.UpdateAvailabilty(isAvailable);
Log.Info("Making handlers aware of {0}.", trigger);
var action = handler as IAction;
if (action != null)
{
action.Filters.HandlerAware.Apply(x => x.MakeAwareOf(this, trigger));
}
}
/// <summary>
/// Adds the trigger.
/// </summary>
/// <param name="trigger">The trigger.</param>
public void AddTrigger(IMessageTrigger trigger)
{
if (_triggers == null)
_triggers = new List<IMessageTrigger>();
trigger.Attach(this);
_triggers.Add(trigger);
}
internal void MakeAwareOf(IMessageTrigger trigger)
{
if(!_triggersToNotify.Contains(trigger))
_triggersToNotify.Add(trigger);
}
public void RegisterTrigger(IMessageTrigger trigger)
{
if (!_triggersToNotify.Contains(trigger))
_triggersToNotify.Add(trigger);
}
/// <summary>
/// Makes the handler aware of a specific trigger.
/// </summary>
/// <param name="trigger">The trigger.</param>
public void MakeAwareOf(IMessageTrigger trigger)
{
if(trigger.Message != this)
return;
CreateActionMessage();
bool isAvailable = action.ShouldTriggerBeAvailable(actionMessage, Source);
trigger.UpdateAvailabilty(isAvailable);
TryUpdateParentAvailability(isAvailable);
action.Filters.HandlerAware.Apply(x => x.MakeAwareOf(this, trigger));
Log.Info("Made handler aware of filters for {0}.", Command);
}
/// <summary>
/// Updates the availability of the trigger.
/// </summary>
/// <param name="trigger">The trigger.</param>
public void UpdateAvailability(IMessageTrigger trigger)
{
var actionMessage = trigger.Message as ActionMessage;
if(actionMessage == null)
{
var ex = new CaliburnException("The handler cannot update availability for this trigger.");
Log.Error(ex);
throw ex;
}
Log.Info("Requesting update avaiability for {0}.", actionMessage);
var action = FindActionHandler(actionMessage);
bool isAvailable = action.ShouldTriggerBeAvailable(actionMessage, _node);
trigger.UpdateAvailabilty(isAvailable);
}
/// <summary>
/// Updates the availability of the trigger.
/// </summary>
/// <param name="trigger">The trigger.</param>
public void UpdateAvailability(IMessageTrigger trigger)
{
if(!_elementIsLoaded)
return;
FindHandlerOrFail(trigger.Message, true).UpdateAvailability(trigger);
}
public void AddTrigger(IMessageTrigger trigger)
{
_triggers.Add(trigger);
}
/// <summary>
/// Makes the filter aware of the <see cref="IMessageTrigger"/>.
/// </summary>
/// <param name="messageHandler">The message handler.</param>
/// <param name="trigger">The trigger.</param>
public void MakeAwareOf(IRoutedMessageHandler messageHandler, IMessageTrigger trigger)
{
if (!AffectsTriggers || !trigger.Message.RelatesTo(Member))
return;
var depObserver = messageHandler.Metadata.FirstOrDefaultOfType<DependencyObserver>();
if (IsGetter(_isInZoomMethod) && depObserver != null)
depObserver.MakeAwareOf(trigger, new[] { _isInZoomMethodName });
if (IsGetter(_selectedItemsMethod) && depObserver != null)
depObserver.MakeAwareOf(trigger, new[] { _selectedItemsMethodName });
//var evtMonitor = messageHandler.Metadata.FirstOrDefaultOfType<EventMonitor>();
//if (evtMonitor != null)
// evtMonitor.MakeAwareOf(trigger);
}
/// <summary>
/// Makes the filter aware of the <see cref="IMessageTrigger"/>.
/// </summary>
/// <param name="messageHandler">The message handler.</param>
/// <param name="trigger">The trigger.</param>
public void MakeAwareOf(IRoutedMessageHandler messageHandler, IMessageTrigger trigger)
{
if (!AffectsTriggers)
return;
var helper = messageHandler.Metadata.FirstOrDefaultOfType<DependencyObserver>();
if (helper == null) return;
if (trigger.Message.RelatesTo(_target))
{
//helper.MakeAwareOf(trigger, new[] { _target.Name });
var actionMessage = trigger.Message as ActionMessage;
if (actionMessage == null) return;
//var handler = helper.Host.FindActionHandler(actionMessage);
bool isAvailable = Execute(actionMessage, trigger.Node,null);
trigger.UpdateAvailabilty(isAvailable);
}
}
public void AttachTrigger(DependencyObject uiElement, IMessageTrigger trigger)
{
throw new NotImplementedException();
}
/// <summary>
/// Create engine
/// </summary>
public DataFlowProcessingEngine(IMessageTrigger messageTrigger, IMessageEncoder encoder,
IMessageSink messageSink, IEngineConfiguration engineConfiguration, ILogger logger,
IIdentity identity)
{
_config = engineConfiguration;
_messageTrigger = messageTrigger;
_messageSink = messageSink;
_messageEncoder = encoder;
_logger = logger;
_identity = identity;
if (_config.BatchSize.HasValue && _config.BatchSize.Value > 1)
{
_dataSetMessageBufferSize = _config.BatchSize.Value;
}
if (_config.MaxMessageSize.HasValue && _config.MaxMessageSize.Value > 0)
{
_maxEncodedMessageSize = _config.MaxMessageSize.Value;
}
_diagnosticInterval = _config.DiagnosticsInterval.GetValueOrDefault(TimeSpan.Zero);
_batchTriggerInterval = _config.BatchTriggerInterval.GetValueOrDefault(TimeSpan.Zero);
_diagnosticsOutputTimer = new Timer(DiagnosticsOutputTimer_Elapsed);
_batchTriggerIntervalTimer = new Timer(BatchTriggerIntervalTimer_Elapsed);
_maxOutgressMessages = _config.MaxOutgressMessages.GetValueOrDefault(4096); // = 1 GB
_encodingBlock = new TransformManyBlock <DataSetMessageModel[], NetworkMessageModel>(
async input => {
try {
if (_dataSetMessageBufferSize == 1)
{
return(await _messageEncoder.EncodeAsync(input, _maxEncodedMessageSize).ConfigureAwait(false));
}
else
{
return(await _messageEncoder.EncodeBatchAsync(input, _maxEncodedMessageSize).ConfigureAwait(false));
}
}
catch (Exception e) {
_logger.Error(e, "Encoding failure");
return(Enumerable.Empty <NetworkMessageModel>());
}
},
new ExecutionDataflowBlockOptions());
_batchDataSetMessageBlock = new BatchBlock <DataSetMessageModel>(
_dataSetMessageBufferSize,
new GroupingDataflowBlockOptions());
_batchNetworkMessageBlock = new BatchBlock <NetworkMessageModel>(
_networkMessageBufferSize,
new GroupingDataflowBlockOptions());
_sinkBlock = new ActionBlock <NetworkMessageModel[]>(
async input => {
if (input != null && input.Any())
{
_logger.Debug("Sink block in engine {Name} triggered with {count} messages",
Name, input.Length);
await _messageSink.SendAsync(input).ConfigureAwait(false);
}
else
{
_logger.Warning("Sink block in engine {Name} triggered with empty input",
Name);
}
},
new ExecutionDataflowBlockOptions());
_batchDataSetMessageBlock.LinkTo(_encodingBlock);
_encodingBlock.LinkTo(_batchNetworkMessageBlock);
_batchNetworkMessageBlock.LinkTo(_sinkBlock);
_messageTrigger.OnMessage += MessageTriggerMessageReceived;
_messageTrigger.OnCounterReset += MessageTriggerCounterResetReceived;
if (_diagnosticInterval > TimeSpan.Zero)
{
_diagnosticsOutputTimer.Change(_diagnosticInterval, _diagnosticInterval);
}
}
/// <summary>
/// Updates the availability of the trigger.
/// </summary>
/// <param name="trigger">The trigger.</param>
public void UpdateAvailability(IMessageTrigger trigger)
{
var actionMessage = trigger.Message as ActionMessage;
if (actionMessage == null)
throw new CaliburnException("The handler cannot update availability for this trigger.");
var action = _host.GetAction(actionMessage);
if (!action.HasTriggerEffects()) return;
bool isAvailable = action.ShouldTriggerBeAvailable(actionMessage, _node);
trigger.UpdateAvailabilty(isAvailable);
}
/// <summary>
/// Makes the filter aware of the <see cref="IMessageTrigger"/>.
/// </summary>
/// <param name="messageHandler">The message handler.</param>
/// <param name="trigger">The trigger.</param>
public void MakeAwareOf(IRoutedMessageHandler messageHandler, IMessageTrigger trigger)
{
if (!AffectsTriggers || !IsGetter)
return;
var helper = messageHandler.GetMetadata<DependencyObserver>();
if (helper == null) return;
if (trigger.Message.RelatesTo(Target))
helper.MakeAwareOf(trigger, new[] { MethodName });
}
/// <summary>
/// Makes the handler aware of a specific trigger.
/// </summary>
/// <param name="trigger">The trigger.</param>
public void MakeAwareOf(IMessageTrigger trigger)
{
var actionMessage = trigger.Message as ActionMessage;
if (actionMessage == null) return;
var action = _host.GetAction(actionMessage);
if (action.HasTriggerEffects())
{
bool isAvailable = action.ShouldTriggerBeAvailable(actionMessage, _node);
trigger.UpdateAvailabilty(isAvailable);
}
action.Filters.HandlerAware.Apply(x => x.MakeAwareOf(this, trigger));
}
/// <summary>
/// Updates the availability of the trigger.
/// </summary>
/// <param name="trigger">The trigger.</param>
public void UpdateAvailability(IMessageTrigger trigger)
{
if(trigger.Message != this)
{
var ex = new CaliburnException("The handler cannot update availability for this trigger.");
Log.Error(ex);
throw ex;
}
if (Command != null)
{
CreateActionMessage();
bool isAvailable = action.ShouldTriggerBeAvailable(actionMessage, Source);
trigger.UpdateAvailabilty(isAvailable);
TryUpdateParentAvailability(isAvailable);
}
}
/// <summary>
/// Adds the trigger.
/// </summary>
/// <param name="trigger">The trigger.</param>
public void AddTrigger(IMessageTrigger trigger)
{
if(_triggers == null)
_triggers = new List<IMessageTrigger>();
trigger.Attach(this);
_triggers.Add(trigger);
Log.Info("Trigger {0} attached.", trigger);
}
/// <summary>
/// Makes the handler aware of a specific trigger.
/// </summary>
/// <param name="trigger">The trigger.</param>
public void MakeAwareOf(IMessageTrigger trigger)
{
var actionMessage = trigger.Message as ActionMessage;
if(actionMessage == null) return;
var handler = FindActionHandler(actionMessage);
bool isAvailable = handler.ShouldTriggerBeAvailable(actionMessage, _node);
trigger.UpdateAvailabilty(isAvailable);
Log.Info("Making handlers aware of {0}.", trigger);
var action = handler as IAction;
if(action != null)
action.Filters.HandlerAware.Apply(x => x.MakeAwareOf(this, trigger));
}